Mapping the shores of the brown dwarf desert I. Upper scorpius

Kraus, A; Martinache, F; Lloyd, J P; Ireland, Michael

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Mapping the shores of the brown dwarf desert I. Upper scorpius

Date

2008

Authors

Kraus, A

Martinache, F

Lloyd, J P

Ireland, Michael

Publisher

IOP Publishing

Abstract

We present the results of a survey for stellar and substellar companions to 82 young stars in the nearby OB association Upper Scorpius. This survey used nonredundant aperture mask interferometry to achieve typical contrast limits of ΔK ∼ 5-6 at the dif